If you find the projected Image is wider at the top/bottom of the screen, this is called keystone image and is due to the projection angle not being perpendicular to the screen. With that said, keystone correction is needed.
To correct the image deformation, you can use the VILINICE VL208 projectors inbuilt keystone function to adjust the image till the image is square and perfect enough.
If you don’t want to use the keystone correction feature, you can solve the problem simply by re-placing the position of VILINICE VL208 projector. Place it higher to reduce the projection angle, try to keep the lens parallel to the screen or wall. The image will become square naturally.
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